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https://issues.apache.org/jira/browse/CASSANDRA-4021?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13242172#comment-13242172
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Sylvain Lebresne commented on CASSANDRA-4021:
---------------------------------------------
What's weird is that the INDEX component was clearly found at the beginning of
scrubDataDirectories, but didn't existed anymore when we tried the deletion.
However, this happens during AbstractDaemon.setup() so I don't think there can
be any concurrent process deleting the file. Anyway, I don't thing the delete
confirmation is very important but I'm not fond of changing code when we don't
understand what's going on. At least as long as nobody have reproduced without
using a buggy patch initially.
> CFS.scrubDataDirectories tries to delete nonexistent orphans
> ------------------------------------------------------------
>
> Key: CASSANDRA-4021
> URL: https://issues.apache.org/jira/browse/CASSANDRA-4021
> Project: Cassandra
> Issue Type: Bug
> Components: Core
> Affects Versions: 0.7 beta 2
> Reporter: Brandon Williams
> Assignee: Brandon Williams
> Priority: Minor
> Labels: datastax_qa
> Fix For: 0.8.11, 1.0.9
>
> Attachments: 4021.txt
>
>
> The check only looks for a missing data file, then deletes all other
> components, however it's possible for the data file and another component to
> be missing, causing an error:
> {noformat}
> WARN 17:19:28,765 Removing orphans for
> /var/lib/cassandra/data/system/HintsColumnFamily/system-HintsColumnFamily-hd-24492:
> [Index.db, Filter.db, Digest.sha1, Statistics.db, Data.db]
> ERROR 17:19:28,766 Exception encountered during startup
> java.lang.AssertionError: attempted to delete non-existing file
> system-HintsColumnFamily-hd-24492-Index.db
> at
> org.apache.cassandra.io.util.FileUtils.deleteWithConfirm(FileUtils.java:49)
> at
> org.apache.cassandra.io.util.FileUtils.deleteWithConfirm(FileUtils.java:44)
> at
> org.apache.cassandra.db.ColumnFamilyStore.scrubDataDirectories(ColumnFamilyStore.java:357)
> at
> org.apache.cassandra.service.AbstractCassandraDaemon.setup(AbstractCassandraDaemon.java:167)
> at
> org.apache.cassandra.service.AbstractCassandraDaemon.activate(AbstractCassandraDaemon.java:352)
> at
> org.apache.cassandra.thrift.CassandraDaemon.main(CassandraDaemon.java:105)
> java.lang.AssertionError: attempted to delete non-existing file
> system-HintsColumnFamily-hd-24492-Index.db
> at
> org.apache.cassandra.io.util.FileUtils.deleteWithConfirm(FileUtils.java:49)
> at
> org.apache.cassandra.io.util.FileUtils.deleteWithConfirm(FileUtils.java:44)
> at
> org.apache.cassandra.db.ColumnFamilyStore.scrubDataDirectories(ColumnFamilyStore.java:357)
> at
> org.apache.cassandra.service.AbstractCassandraDaemon.setup(AbstractCassandraDaemon.java:167)
> at
> org.apache.cassandra.service.AbstractCassandraDaemon.activate(AbstractCassandraDaemon.java:352)
> at
> org.apache.cassandra.thrift.CassandraDaemon.main(CassandraDaemon.java:105)
> Exception encountered during startup: attempted to delete non-existing file
> system-HintsColumnFamily-hd-24492-Index.db
> {noformat}
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